(normal) any 2B-1 > y ≥ 2-(B+1) (subnormal, sig=00…) RDN, RNE, RMM +∞ NX, OF +0.0 < x < 2-(B+1) (subnormal, sig=00…) RDN, RNE, RMM +∞ NX, OF -0.0 any -∞ DZ